This medication is used to treat attention deficit hyperactivity disorder - ADHD. It works by changing the amounts of certain natural substances in the brain. Amphetamine belongs to a class of drugs known as stimulants. It can help increase your ability to pay attention, stay focused on an activity, and control behavior problems. It may also help you to organize your tasks and improve listening skills.
How to use Amphetamine Sulfate 20 Mg Disintegrating Tablet
Take this medication by mouth with or without food as directed by your doctor, usually 1 to 3 times a day. The first dose is usually taken when you wake up in the morning. If more doses are prescribed, take them as directed by your doctor, usually 4 to 6 hours apart.
Keep the medication in the original package until you are ready to take a dose. Dry your hands before handling the medication. To remove a tablet, push the tablet through the foil of the blister pack. Place the tablet on your tongue, allow it to dissolve, and swallow with your saliva. You do not need to take this medication with water or other liquid. Do not crush or chew the tablet.
The dosage is based on your medical condition, age, and response to treatment. Your doctor may adjust your dose to find the dose that is best for you. Follow your doctor's instructions carefully.
Use this medication regularly to get the most benefit from it. To help you remember, take it at the same time(s) each day.
During treatment, your doctor may sometimes stop the medication for a short time to see if the medication is still needed.
If you suddenly stop using this medication, you may have withdrawal symptoms (such as severe tiredness, sleep problems, agitation). To help prevent withdrawal, your doctor may lower your dose slowly. Withdrawal is more likely if you have used amphetamine for a long time or in high doses. Tell your doctor or pharmacist right away if you have withdrawal.
When this medication is used for a long time, it may not work as well. Talk with your doctor if this medication stops working well.
Though it helps many people, this medication may sometimes cause addiction. This risk may be higher if you have a substance use disorder (such as overuse of or addiction to drugs/alcohol). Take this medication exactly as prescribed to lower the risk of addiction. Ask your doctor or pharmacist for more details.
Tell your doctor if your condition does not get better or if it gets worse.
Loss of appetite, weight loss, dry mouth, stomach upset/pain, nausea/vomiting, dizziness, headache, fever, and trouble sleeping may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly.
Remember that this medication has been prescribed because your doctor has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
Tell your doctor right away if you have any serious side effects, including: signs of blood flow problems in the fingers or toes (such as coldness, numbness, pain, or skin color changes), unusual wounds on the fingers or toes, mental/mood/behavior changes (such as agitation, mood swings, depression, abnormal thoughts, thoughts of suicide), uncontrolled movements, outbursts of words/sounds, change in sexual ability/desire, swelling ankles/feet, extreme tiredness, blurred vision, frequent/prolonged erections (in males).
Get medical help right away if you have any very serious side effects, including: fainting, severe headache, fast/pounding/irregular heartbeat, seizures, symptoms of a stroke (such as weakness on one side of the body, trouble speaking, sudden vision changes, confusion), symptoms of a heart attack (such as chest/jaw/left arm pain, shortness of breath, unusual sweating).
This medication may increase serotonin and rarely cause a very serious condition called serotonin syndrome/toxicity. The risk increases if you are also taking other drugs that increase serotonin, so tell your doctor or pharmacist of all the drugs you take (see Drug Interactions section). Get medical help right away if you develop some of the following symptoms: fast heartbeat, hallucinations, loss of coordination, severe dizziness, severe nausea/vomiting/diarrhea, twitching muscles, unexplained fever, unusual agitation/restlessness.
A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist.
In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.
Misuse or abuse of amphetamines may cause serious (possibly fatal) heart and blood pressure problems. Amphetamine-type medications can be habit-forming. Use only as directed. If you use this drug for a long time, you may become dependent on it and may have withdrawal symptoms after stopping the drug. Consult your doctor or pharmacist for more details. (See also How to Use section.
Before taking this medication, tell your doctor or pharmacist if you are allergic to it; or to other sympathomimetic drugs (such as lisdexamfetamine, dextroamphetamine); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: blood circulation problems (such as Raynaud's syndrome), personal/family history of mental/mood disorders (such as bipolar disorder, depression, psychotic disorder, suicidal thoughts), heart problems (including irregular heartbeat/rhythm, coronary artery disease, heart failure, cardiomyopathy, problems with the heart structure such as valve problems), family history of heart problems (such as sudden death/irregular heartbeat/rhythm), stroke, high blood pressure, overactive thyroid (hyperthyroidism), glaucoma, seizures, personal or family history of a substance use disorder (such as overuse of or addiction to drugs/alcohol), personal or family history of uncontrolled muscle movements (such as Tourette syndrome).
This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
Children may be more sensitive to the side effects of this drug, especially weight loss. This medication may slow down a child's growth. The doctor may recommend temporarily stopping the medication from time to time to reduce this risk. Monitor your child's weight and height. Consult the doctor or pharmacist for more details.
During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. Babies born to mothers who are dependent on this medication may be born too soon (premature) and have low birth weight. They may also have withdrawal symptoms. Tell your doctor right away if you notice possible mood changes, agitation, or unusual tiredness in your newborn.
Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval.
Taking MAO inhibitors with this medication may cause a serious (possibly fatal) drug interaction. Avoid taking MAO inhibitors (isocarboxazid, linezolid, metaxalone, methylene blue, moclobemide, phenelzine, procarbazine, rasagiline, safinamide, selegiline, tranylcypromine) during treatment with this medication. Most MAO inhibitors should also not be taken for two weeks before treatment with this medication. Ask your doctor when to start or stop taking this medication.
Some products have ingredients that could raise your heart rate or blood pressure. Tell your pharmacist what products you are using, and ask how to use them safely (especially cough-and-cold products, diet aids, or NSAIDs such as ibuprofen/naproxen).
The risk of serotonin syndrome/toxicity increases if you are also taking other drugs that increase serotonin. Examples include street drugs such as MDMA/ "ecstasy," St. John's wort, certain antidepressants (including SSRIs such as fluoxetine/paroxetine, SNRIs such as duloxetine/venlafaxine), among others. The risk of serotonin syndrome/toxicity may be more likely when you start or increase the dose of these drugs.
This medication may interfere with certain lab tests (such as blood and urine steroid levels, brain scan for Parkinson's disease), possibly causing false test results. Make sure lab personnel and all your doctors know you use this drug.
If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center. Symptoms of overdose may include: severe mental/mood changes (such as restlessness, confusion), seizures, fast breathing.
If you miss a dose, take it as soon as you remember. If it is late in the afternoon or near the time of the next dose, skip the missed dose. Take your next dose at the regular time. Do not double the dose to catch up.
Store at room temperature away from light and moisture. Do not store in the bathroom. Keep all medications away from children and pets.
Do not flush medications down the toilet or pour them into a drain unless instructed to do so. Properly discard this product when it is expired or no longer needed. Consult your pharmacist or local waste disposal company.
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CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.